/Engine/Plugins/Developer/Concert/ConcertMain/Source/Concert/Public/ConcertMessageData.h
Holds info on an instance communicating through concert
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)() struct FConcertInstanceInfo
FGuid
InstanceId
Holds the instance identifier.
FString
InstanceName
Holds the instance name.
FString
InstanceType
Holds the instance type (Editor, Game, Server, etc).